You start to decelerate even if you are going to a station.
That's the ship decelerating due to the target coming closer, try that and deselect the station, shouldn't happen anymore then as it doesn't have a gravity well.
Acceleration slows down and levels off as you approach 2001c, as I recall.
I always had the impression that it starts getting slower past 1800c or somewhere around.
Still, all this makes me want the answer to one question: What does FD expect us to do on these eventless straight line screensaver travels? Like really, what'd they think this would add gameplay wise?
Please someone enlighten me because I always end up with "they hate us and want us to hate SC" : / that's what I feel every time I go somewhere that's more than 10k Ls away, nothing but staring at the ETA go down, then it almost stops going down because I started to decelerate.
Can someone really honestly say they enjoy these times of "nothing to do, just staring at dots zipping by"? Well aside of the FD devs
Sidenote, I came here because I had to cover 32k Ls and had nothing to do while waiting.
2nd sidenote, forgot I had to go back the 32k Ls because I was smuggling and wanted to risk less bounty should I screw up so unloaded the other portion first, and if jumping to a nearby system and jumping back being faster than SC'ing back then I have no idea IF there's any good example of how too-long SC times are.